Features: 1) high-accuracy voltage detection circuit; 2) terminal of the charger using high voltage device; 3) Built-in three-stage over-current detection circuit (over-current 1, over-current 2, or load short circuit); 4) MOS transistor can control the battery charge and discharge; 5) low standby current consumption. Description: 100% brand new and high quality Over Charge voltage:4.25-4.35v0.05v Over Discharge voltage: 2.3-3.0v0.05v Max Working current:25A Max peak current:35-40A Working temperature:-40---+50 Storage Temperature:-40-- +80 Small current:50uA Life cycle:more then 30000 hours Resistance:Less than 100m Short Cut:Protectable,Charge can repair Size:56*45*4.0mm Package include: 1 pcs battery protection board Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you 2. Please allow 1-3cm measuring deviation due to manual mearement.